<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script src="my.js"></script>
<script>
   console.log("内部引入成功");
</script>
<input type="button" value="按钮" onclick="alert('成功')">
</body>
</html>